Soluzione - Long subtraction

0, 00000028

0,00000028

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Spiegazione passo passo

1. Rewrite the numbers from top to bottom, aligned by their place values

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths

	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,

2. Subtract the numbers using long subtraction method

Because the upper digit (5) in the hundred millionths column is too small to get a positive difference, borrow 1 from the digit (8) in the next number place which becomes (7) and get (15).

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,

Subtract the numbers in the hundred millionths column from the top number:
15-7=8

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,								8

Subtract the numbers in the ten millionths column from the top number:
7-5=2

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,							2	8

Subtract the numbers in the millionths column from the top number:
0-0=0

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,						0	2	8

Subtract the numbers in the hundred thousandths column from the top number:
0-0=0

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,					0	0	2	8

Subtract the numbers in the ten thousandths column from the top number:
0-0=0

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,				0	0	0	2	8

Subtract the numbers in the thousandths column from the top number:
0-0=0

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,			0	0	0	0	2	8

Subtract the numbers in the hundredths column from the top number:
0-0=0

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,		0	0	0	0	0	2	8

Subtract the numbers in the tenths column from the top number:
0-0=0

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
		,	0	0	0	0	0	0	2	8

Subtract the numbers in the ones column from the top number:
0-0=0

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths	hundred millionths
									7	15
	0	,	0	0	0	0	0	0	8	5
-	0	,	0	0	0	0	0	0	5	7
	0	,	0	0	0	0	0	0	2	8

The solution is: 0,00000028

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